A.deviation
B.annual rate of variation change
C.precession
D.compass error
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A.newly edition with up to date correction and in reasonable prices
B.the current edition and incorporate the last Notices to Mariners correction
C.the current edition and incorporate the latest Notices to Mariners correction at the time of sale
D.brand-new one with up to date correction and clean writing
A.C
B.Cl
C.Co
D.c
A.Surging
B.Spilling
C.Plunging
D.Converging
A.you should stay to the north or east of the buoy
B.you should stay to the west or south of the buoy
C.the buoy is a major lighted buoy
D.nothing special for navigational purposes
A.magnetic equator
B.magnetic longitude reference line
C.points where there is no variation
D.points where there is no annual change in variation
最新試題
Charts showing the coast of Mexico are produced by the United States（）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
The only cylindrical chart projection widely used for navigation is the （）.
Which information does the outer ring of a compass rose on a nautical chart provide（）.
On a Mercator chart，1 nautical mile is equal to（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
（）is not a position-fixing system.
The shoreline on charts generally represents the mean（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.